Fosgenowa
Fosgenowa is a term that appears to be a misspelling or a non-standard transliteration related to phosgene. Phosgene is a chemical compound with the formula COCl2. It is a colorless gas at room temperature, with a smell often described as freshly cut hay or mown grass. Phosgene is highly toxic and was used as a chemical weapon during World War I. Its toxicity stems from its ability to react with proteins in the lungs, causing pulmonary edema.
In industrial settings, phosgene is a valuable intermediate in the production of plastics, pesticides, and pharmaceuticals.